| #!/bin/ksh -p |
| # |
| # CDDL HEADER START |
| # |
| # The contents of this file are subject to the terms of the |
| # Common Development and Distribution License (the "License"). |
| # You may not use this file except in compliance with the License. |
| # |
| # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| # or http://www.opensolaris.org/os/licensing. |
| # See the License for the specific language governing permissions |
| # and limitations under the License. |
| # |
| # When distributing Covered Code, include this CDDL HEADER in each |
| # file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| # If applicable, add the following below this CDDL HEADER, with the |
| # fields enclosed by brackets "[]" replaced with your own identifying |
| # information: Portions Copyright [yyyy] [name of copyright owner] |
| # |
| # CDDL HEADER END |
| # |
| |
| # |
| # Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| # Use is subject to license terms. |
| # |
| |
| # |
| # Copyright (c) 2013, 2016 by Delphix. All rights reserved. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/reservation/reservation.shlib |
| |
| # |
| # DESCRIPTION: |
| # |
| # In pool with a full filesystem and a filesystem with a reservation |
| # destroying another filesystem should allow more data to be written to |
| # the full filesystem |
| # |
| # |
| # STRATEGY: |
| # 1) Create a filesystem as dataset |
| # 2) Create a filesystem at the same level |
| # 3) Set a reservation on the dataset filesystem |
| # 4) Fill up the second filesystem |
| # 5) Destroy the dataset filesystem |
| # 6) Verify can write more data to the full filesystem |
| # |
| |
| verify_runnable "both" |
| |
| log_assert "Destroying top level filesystem with reservation allows more " \ |
| "data to be written to another top level filesystem" |
| |
| function cleanup |
| { |
| datasetexists $TESTPOOL/$TESTFS1 && \ |
| log_must zfs destroy $TESTPOOL/$TESTFS1 |
| |
| [[ -e $TESTDIR/$TESTFILE1 ]] && log_must rm -rf $TESTDIR/$TESTFILE1 |
| [[ -e $TESTDIR/$TESTFILE2 ]] && log_must rm -rf $TESTDIR/$TESTFILE2 |
| } |
| |
| log_onexit cleanup |
| |
| log_must zfs create $TESTPOOL/$TESTFS1 |
| |
| space_avail=`get_prop available $TESTPOOL` |
| |
| # |
| # To make sure this test doesn't take too long to execute on |
| # large pools, we calculate a reservation setting which when |
| # applied to the dataset filesystem will ensure we have |
| # RESV_FREE_SPACE left free in the pool. |
| # |
| ((resv_size_set = space_avail - RESV_FREE_SPACE)) |
| |
| log_must zfs set reservation=$resv_size_set $TESTPOOL/$TESTFS1 |
| |
| space_avail_still=`get_prop available $TESTPOOL` |
| |
| fill_size=`expr $space_avail_still + $RESV_TOLERANCE` |
| write_count=`expr $fill_size / $BLOCK_SIZE` |
| |
| # Now fill up the filesystem (which doesn't have a reservation set |
| # and thus will use up whatever free space is left in the pool). |
| file_write -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE -c $write_count -d 0 |
| ret=$? |
| if (($ret != $ENOSPC)); then |
| log_fail "Did not get ENOSPC as expected (got $ret)." |
| fi |
| |
| log_must zfs destroy -f $TESTPOOL/$TESTFS1 |
| |
| log_must file_write -o create -f $TESTDIR/$TESTFILE2 \ |
| -b $(getconf PAGESIZE) -c 1000 -d 0 |
| |
| log_pass "Destroying top level filesystem with reservation allows more data " \ |
| "to be written to another top level filesystem" |